Validate against a schema fragment.

[arnaudbriche]

I'm new to json-schema so it might not be a relevant issue.
I have one big json file describing a lot of schemas (mostly small ones) with a lot $ref between schemas, and I need to be able to validate data against one of these "inner" schemas. I can't find a way to do this with json-schema.
Does json-schema support this use case, or am I doing it wrong ?

[hoxworth]

This library does not currently provide functionality to validate against a specific fragment of an existing schema; however, I really like that idea and will add it as a future feature. More than likely, the validate commands will accept a :fragment option or such with a valid JSON pointer (http://tools.ietf.org/html/draft-pbryan-zyp-json-pointer-02) as a value.

I'll take a look into adding this functionality this week.

[hoxworth]

I just added this functionality in version 2.1.0.

To use, pass a :fragment option along with your validation.

  require 'rubygems'
  require 'json-schema'

  schema = {
    "type" => "object",
    "required" => ["a","b"],
    "properties" => {
      "a" => {"type" => "integer"},
      "b" => {"type" => "string"},
      "c" => {
        "type" => "object",
        "properties" => {
          "z" => {"type" => "integer"}
        }
      }
    }
  }

  data = {
    "z" => 1
  }

  JSON::Validator.validate(schema, data, :fragment => "#/properties/c")

[arnaudbriche]

Works great ! Thx Hoxworth.